MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass external link farm, with many links pointing to Shopify-hosted PDFs. One critical heuristic identified a link to a known malicious redirector infrastructure at `https://ttraff.ru/pify?keyword=pulsar+135+parts+pdf`. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the same malicious redirector URL and several benign-looking Shopify URLs, suggesting a lure to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://ttraff.ru/pify?keyword=pulsar+135+parts+pdf
- http://files.chenale-extensionsllc.com/uploads/1/3/2/6/132695644/1551419.pdf
- http://files.philstopford.com/uploads/1/3/0/8/130814601/4535536.pdf
- http://files.acblunit234.org/uploads/1/3/0/9/130969474/4a6051c.pdf
- http://pipotek.terrifraserstudio.com/uploads/1/3/0/7/130775422/pomobebeniref.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lawup.pdf
- https://cdn.shopify.com/s/files/1/0439/2137/5400/files/brainstorming_ideas_for_writing.pdf
- https://cdn.shopify.com/s/files/1/0437/8768/1954/files/26507427494.pdf
- https://cdn.shopify.com/s/files/1/0433/7192/1571/files/xelazalito.pdf
- https://cdn.shopify.com/s/files/1/0431/8658/5749/files/xowukevedumuparitadubu.pdf
- https://cdn.shopify.com/s/files/1/0434/4774/6721/files/jikufamubupader.pdf
- https://cdn.shopify.com/s/files/1/0431/3025/7568/files/aetna_choice_pos_ii_plan_coverage_2020.pdf
- https://cdn.shopify.com/s/files/1/0434/8307/0629/files/austerity_measures.pdf
- https://cdn.shopify.com/s/files/1/0436/8993/5002/files/3481268423.pdf
- https://cdn.shopify.com/s/files/1/0431/0299/4586/files/undo_a_push_to_master.pdf
- https://cdn.shopify.com/s/files/1/0434/5308/7905/files/98240880734.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000068d0.binfc283c079482e9f2900db86d165594f3a2e350ec624143b45fdb33f102c33c46 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x68D0 | 5376 bytes |
font_01_sfnt_off00007b26.bina7d6c316bce7040b1dc2dfbc2f425f0a8cb2834ba29f69612e99c97a9c491a66 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B26 | 15768 bytes |
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